hibernate

刺猬会在冬天冬眠以躲避寒冷。

Hedgehogs ___hibernate in winter to escape the cold.

刺猬在冬天会冬眠以度过寒冷的季节。

Hedgehogs ___hibernate during winter to survive the cold season.

地松鼠冬眠时心跳会变得非常缓慢。

Ground squirrels' heartbeat slows down significantly when they ___hibernate.